Chelmsford Open Space Stewardship

Since 2005, the Chelmsford Open Space Stewardship, an independent group of resident volunteers, has maintained the town’s open space and community gardens, and hosted free community events to build a sense of community and stewardship.

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The Latest from COSS

Hidden History of Chelmsford

Heart Pond: Born of Ice, Named for Love, Remembered for Ice Blocks

If you have ever strolled the beach at Heart Pond on a summer afternoon, it might feel timeless, but the pond’s story actually begins 12,000 years ago, when a retreating glacier left behind a giant block of stranded ice. As that block melted, the earth around it collapsed, forming what geologists call a kettle pond. Heart Pond is one of those rare relics, a deep, round basin, about 91 acres, with water as old as Chelmsford itself.

COSS event

Reflections on Halloween Week Events

Well, two big events are now behind us, what we like to call our “Halloween events,” and we have a few days’ break before we start the “Thanksgiving events.” I wanted to take a moment to reflect on what happened and how it all came together.

Chelmsford doesn’t have a full recreation department like many surrounding towns do, so it’s the residents and community groups who organize most of the events you see. These events don’t have large budgets or resources behind them, but what they do have is a tremendous amount of heart.

Whether it’s a trunk-or-treat, a small neighborhood Halloween parade, or a party and movie night in one of the old town halls, Chelmsford residents have figured out how to make things happen with just a few dollars and a lot of creativity.

Hidden History of Chelmsford

Bill Edge / Deep Brook Reservation – 2025 Update

Bill Edge / Deep Brook Reservation – 2025 Update The Bill Edge, also known as Deep Brook Reservation, sits quietly at 214 Dunstable Road in North Chelmsford, Massachusetts. This fifteen-acre property is mostly woodland and wetlands, centered around the twisting waters...

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COSS supports individuals, community groups, and organizations through outdoor projects, educational efforts, and service initiatives. Our work includes assisting Scouts and nonprofits, helping local farmers, maintaining trails and gardens, building accessible infrastructure, and repurposing donated tools for public use.

Scouting

The Chelmsford Open Space Stewardship actively works with Scouting America. Since 2005 we have helped Scouts with over 20 Eagle projects and numerous camp-outs and educational nature walks.

Land Trusts and Conservation

The Chelmsford Open Space Stewardship works with Land Trusts and Conservation groups in Chelmsford and surrounding towns to preserve, improve, and protect the Open Spaces.

Local Farming

The Chelmsford Open Space Stewardship has supported local farmers and community growers helping to set up full hoop style green houses and individual growers' raised garden beds.

Wildlife Preservation

As stewards of open spaces, we aim to protect many locations for use by humans and wildlife - both flora and fauna. We aim to preserve native plants (especially pollinators) and make spaces that will attract wildlife. We support initiatives like the Newhouse Wildlife Rescue and provide native pollinator plants to those who would like to use them.

See videos from our events

Every time you think of a city, you have to think green, green, green. Every time you see concrete jungle, you must find open spaces. And when you find open spaces, make it so people can get to them.

Eduardo Paes

Our Partners & Sponsors

Chelmsford Cultural Council logo
Chelmsford Land Conservation Trust logo
Friends of Koulas Farm logo
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